function [sumtone]=beep2


sumtone=[];
for i=1:50




    cf=440;

    sf=22050;
    d=1.0;
    n=sf*d;
    s=(1:n)/sf;
    tone=sin(2*pi*cf*s);
    tone(size(tone,2)/2+1:size(tone,2))=0;
    sumtone=[sumtone tone];
    
end

end
